Carbureter for internal-combustion engines.



G. ENRIGO. GARBURETER FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED NOV. 27, 1906.

904,855. Patented Nov. 24, 1908.

Fi g

Gwen! Cg INVENTOR 'WITNESSES:

QTJ By 1'] flow/lays,

( lOVANNI E'Niuco, or

T.UB1N,'ITALY, ASSIGNOR TO l. A'. 'l. SOGlE'ln FABBRIUA ITALI- ANA AUTOMOBILI-TORINO. OF TURIN, ITALY.

CARBURETER FOR INTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent.

Patented Nov. 24, 1908.

Application filed November 27, 1906. Serial No. 845,869.

invented certain new and useful Improvements in Carbureters for Internal-Combustion Engines, of which the following, 1s 'a full, clear, and exact specification.

In internal combustion engines it is necessary to keep the proportions of the constituents of the combustible mixture as constant as possible for securing efiiciency of the engine, but sometimes, it is desirable, espe cially when the engine is applied to a motor car, to vary the proportions of such constituents for short periods by increasing, or diminishing, the quantity of hydrocarbon relatively tothe quantity of air.

The object of this invention is to provide a carbureter securing the automatic regulation of the amount of 'carburation under normal running conditions, while it enables the proportions of the constituents of the mixture to be varied when desired; the invention also comprises means for deflecting the hydrocarbon inadirection across the air current for insuring eflicient mixture of the air and hydrocarbon.

I will describe-this invention with reference to the accompanying drawings wherein Figure l is a'se'ctional elevation, and Fig.

2 a sectional plan, ofi an arrangement in -ac-' cordance therewith.

1 is a cylindrical'body of thecarbureter constituting a mixing chamber, 2 is a cylindrical air distributer capable of rotating within the mixing chamber 1 and provided with openings 3 and 4 corresponding to openings 5 and 6 in the body of the carbureter, which openings act res ectively as inlets to the suction pipes 7 oi the cylinders and inlets for additional atmospheric air, so that, on turning the cylindrical distributer 2, the suction is suitably regulated, air, preferably chamber through the opening 10 while the required quantity of additional air enters through the openings 6. The adjustment ofthe'distributer 2 can be efiected, as usual, by an arm I which may be connected with a centrifugal governor. The hydrocarbon is supplied to the carbureter through a tube and flat nozzle 11 connected, by a tube 121, to the reservoir of hydrocarbon. Above the 110221: 11 is the flat end' 12 of a screwhot, "entering the mixing.

ing t e quantity carbureter lever,

threaded rod 13 passing through ahub- 14 formed with, or connected to, the body of the carbureter l. The rod 13 is connected to the cylindrical distributer-Q by means of an elastic member, such as a spring .15, which has no initial load, or tension, put on it so that all the movements of the distributer 2 are transmitted by the saidelastic member, or sprin 15, in either direction to the rod 13, which, on being lowered, or raised, by the rotation of its screwthreaded part within the hub 14, brings the fiat end 12 of the said rod, nearer to, or further away from, the end of the flat nozzle -11, thereby causing a greater, or lesser, resistance to the efiiux of hydrocarbon from the o ening in the nozzle 11, thus regulatof hydrocarbon admitted to the mixing chamber at the same time that the corresponding movement of the distributer 2 regulates the suction and admission of additional air. The rod 13 extends upwardly and projects from the top of the body and is there connected to a or other device, 16, which can be operated by hand when it is desired to vary the ratio of the constituents of the mixture, the elastic member, or spring, '15, permitting the rod. 13 to operate while leaving the position of the distributer 2 unchanged, so that the quantity of hydrocarbon supplied bythe nozzle 11 is varied, while the quantity of air admitted is notvaried. As soon as the lever, or the like, 1.6, is released, the parts return to their previous positions andthe mixture of air and hydrocarbon resumes its normal proportions. The fiat end of the part'l2 over the fiat upperend of the nozzle 11 causes theihydro'carbon to be deflected across theair current'and thisinsures an eflicient mixingiof the hydrocarbon-and air.

What I claim is:

1. In a carburetor for internal'combustion engines, a hydrocarbon valve, an air valve, and means for connecting said valves so that they may be moved together to vary the quantity of mixture, such means being adapted to permit a relative manual adjustment of such valves and the automatic return thereof to their original relative positions.

2. In a carbureter for internal combustion engines, a hydrocarbon valve, an air valve, and means for connecting said valves to a governor so that they may be moved together to vary the quantity of mixture,

such means being adapted to permit a relative manual adjustment of such valves and the automatic return thereof to their original relative positions.

3. In a carburetor for internal co1nbus-' controlling the quantity of air and hydrocarbon, and means for altering the proportion'of air and hydrocarbon, sald controlling means including means for automatically restoring the proportions after alteration.

5. In a carbureter for internal combustion engines, the combination of means for controlling the quantity of air and hydro: carbon, and means for altering the proportions of air and hydrocarbon, said controlling means including means for automatically restoring the proportions after alteration comprising a resilient member connectinig one of such regulating means to the ot ier.

6. In a carbureter for internal combustion engines, the combination of an air valve,

a hydrocarbon valve, means for movin both said valves to regulate the quantity 0? mixture without changing its proportions, and means for adjusting the proportions of air and hydrocarbon, said. moving means including means for automatically restoring such proportions When such adjusting means are released.

7. In a carbureter for internal combus-.

tion engines, the combinati a with an air valveand a hydrocarbon valve, of a resilient connection between. such valves, said connection being adapted to move the hydrocarbon valve when the air valve is operated, and. being adapted to permit the independent operation of the hydrocarbon valve.

In a carbureter for internal combustion engines, the combination with an air carbon valve when the air valve is operated,

and being adapted to permit the independent operation of the hydrocarbon valve,

such means being adapted to automatically restore the hydrocarbon valve to its former relation with the air valve when the independent operation ceases.

v9. In a carbureter for internal combustion engines, a cylindrical air valve, a hydrocarbon valve passing through said air valve, and aspring connecting said air valve with said hydrocarbon valve, said spring being adapted to yieldingly hold said valves in a definite angular relation, and to restore them to such relation after they are relatively displaced.

10. In a c'arbureter for internal combusbeing adapted for direct connection to a governor, a connection between said valves adapted to cause them to normally move to a corresponding extent when the governor is operated, but adapted to permit the valve which is, not directly connected to the govtion engines, the combination of an air valve, a hydrocarbon valve, one of said valves L screwvalve with said rod and adapted to restore 7 them to a normal'angular relation after relative movement. p I

In witness whereof, I have hereunto signed my name in the presence of two subscribing witnesses.

GIOVANNI EN RICO. Witnesses: i

JOHN BAeE'rro, FERRARIS GIOVANNI. 

